According to one anonymous Samsung supplier, "Samsung is mulling to adopt the force touch technology partially from the S8 but the full adoption will come in one or two year. It is a matter of time before other major Android smartphone makers deploy the technology that will help enhance user interface." Google introduced the so-called App shortcuts with Android Nougat, which basically requires just a long press, but Force Touch is a much more granular way to control the interface with a pressure-sensitive technology.
A Samsung component division exec has also tipped that the Force Touch tech is coming to its flagships "in the near future," though it may take a while to roll down the midrange, so that's a second source to hint at a Galaxy S8 with pressure-sensitive display right there. We've been hearing this story for the Galaxy S7 as well, but the S8 is apparently going to be redesigned completely, so there is a much higher chance for a Force Touch display to happen there.
source: The Investor